.middle {
	margin-top: 20px;
	width: 800px;
	margin: 0 auto;
	text-align锛歝enter
}
.middle h2{
	text-align: center;
}
.middle ul{
	text-align: center;
}
.middle ul li {
	box-sizing: border-box;
	width: 360px;
	padding: 10px;
	overflow: hidden;
	float: left;
	margin-left: 10px;
	list-style: none;
	line-height锛�30px;
	
}